CN214129789U - Precise piezoelectric-driven injection system - Google Patents
Precise piezoelectric-driven injection system Download PDFInfo
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- CN214129789U CN214129789U CN202022652257.9U CN202022652257U CN214129789U CN 214129789 U CN214129789 U CN 214129789U CN 202022652257 U CN202022652257 U CN 202022652257U CN 214129789 U CN214129789 U CN 214129789U
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- ball screw
- push rod
- base
- workbench
- injector
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- 238000002347 injection Methods 0.000 title claims abstract description 45
- 239000007924 injection Substances 0.000 title claims abstract description 45
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 239000003814 drug Substances 0.000 description 12
- 229960005486 vaccine Drugs 0.000 description 9
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000002255 vaccination Methods 0.000 description 2
- 241000711573 Coronaviridae Species 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a piezoelectricity driven accurate injection system, including rotary-type ultrasonic motor (1), ball screw shaft (2), ball nut (3), workstation (4), base (5) and syringe (6), characterized by rotary-type ultrasonic motor fixes in the mounting groove of base one end, the workstation is installed in guide way (7) of base and is fixed continuous with ball nut, the one end of ball screw shaft links to each other with rotary-type ultrasonic motor's driving piece, the other end passes ball nut and workstation, the upper portion of workstation is equipped with push rod fixed slot (8) of push rod (10) of syringe, the push rod cartridge of syringe is in the push rod fixed slot in and along with workstation synchronous motion, the main part of syringe is fixed in recess (9) of the base other end. The utility model has the advantages of simple structure, high control precision, small volume, self-locking when power is cut off, anti-electromagnetic interference, etc.
Description
Technical Field
The utility model relates to a medical instrument, in particular to an injection device, in particular to a piezoelectric-driven precise injection system capable of accurately controlling the injection amount.
Background
At present, along with the development of science and technology, the flow or flow rate of fluid needs to be accurately controlled in many fields, especially under the background of novel coronavirus, the development of human beings puts forward new requirements on the aspects of novel medical equipment and public health safety protection, especially for the urgent demand of vaccines, if the vaccines can be produced in quantity, contactless automatic vaccination is an effective method for preventing infection, most of traditional vaccines also need manual vaccination, are not beneficial to epidemic situation prevention and control, and have low efficiency.
In order to realize contactless automatic inoculation or improve the accuracy of medicament injection, an automatic precise injection system is urgently needed, starting from the aspects of driving and controlling the injection system, and solving the problem of how to realize high-precision movement of an injector push rod, so that the medicament can be accurately, uniformly and continuously injected automatically according to requirements. At present, most vaccine medicaments are pushed manually, and the requirement of high precision of vaccine injection cannot be met. Therefore, after the rotary type ultrasonic motor-driven precise injection system is applied to the field, the non-contact automatic injection requirements of vaccines and various trace medicaments can be met, and the rotary type ultrasonic motor-driven precise injection system has important application values on preparation of medicaments, precise control of liquid medicine flow and flow rate and epidemic prevention and control in the biomedical field of China. The system can also be applied to the precise administration of other therapeutic liquid medicines, in particular to a precise and stable administration system with small dose and long time.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the prior vaccine medicament mostly adopts the manual pushing mode, can not reach the high precision requirement of vaccine injection, and designs a piezoelectric driving precision injection system capable of precisely controlling the dosage.
The technical scheme of the utility model is that:
a piezoelectric-driven precise injection system comprises a rotary ultrasonic motor 1, a ball screw shaft 2, a ball screw nut 3, a workbench 4, a base 5 and an injector 6, and is characterized in that the rotary ultrasonic motor 1 is fixed in a mounting groove at one end of the base 5, the workbench 4 is arranged in a guide groove 7 of the base 5 and is fixedly connected with the ball screw nut 3, one end of the ball screw shaft 2 is connected with a driving piece of the rotary ultrasonic motor 1, the other end of the ball screw shaft passes through the ball screw nut 3 and the workbench 4, a push rod fixing groove 8 of a push rod 10 of the injector 6 is arranged at the upper part of the workbench 4, the push rod 10 of the injector 6 is inserted in the push rod fixing groove 8 and moves synchronously with the workbench 4, the main body of the injector 6 is fixed in a groove 9 at the other end of the base 5, the rotary ultrasonic motor 1 drives the ball screw shaft 2 to rotate, the ball screw shaft 2 pushes the ball screw nut 3 and the workbench 4 connected with the ball screw nut 3 to move linearly in the guide groove 7, the workbench 4 drives the push rod 10 of the injector 6 to move so as to push out the injection in the injector 6, thereby realizing the precise injection of the injection.
The groove 9 is provided with a slot 11 for fixing the wing part of the syringe 6.
One end of the ball screw shaft 2 passing through the table 4 is supported in a base 5.
The push rod fixing groove 8 is in a T-shaped structure.
The utility model has the advantages that:
the utility model discloses utilize the high accuracy drive and the control of supersound motor, realize syringe push rod high accuracy location to improve injection system's precision, maximum thrust can design different motor sizes according to the demand, and the rotation speed can be realized controlling wantonly from 0.0001 to 100/s, and the injection dosage depends on the syringe range.
In the operation process of the rotary ultrasonic motor, the workbench is driven to push the injector piston to move, so that the medicament can be accurately, uniformly and continuously injected according to requirements, and non-contact automatic vaccine injection can be realized.
The utility model discloses use rotary-type supersound motor as the driving source, compare with traditional electromagnetic motor, simple structure has, control accuracy is high, small, the outage auto-lock, advantages such as anti-electromagnetic interference, be the ideal actuating system who realizes the accurate injection of medicine, through design piezoelectric motor driven syringe piston shaft, can realize strideing across the infinitely variable of a plurality of orders of magnitude and accurate stable medicine injection, especially to big batch, the accurate injection of trace liquid medicine and the artifical special occasion that is difficult to realize, utilize this system can improve injection precision and efficiency by a wide margin.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the base of the present invention.
Fig. 3 is a schematic perspective view of the workbench according to the present invention.
Fig. 4 is the three-dimensional structure schematic diagram of the ultrasonic motor after being connected with the screw rod and the workbench.
In the figure: 1. the ultrasonic motor 2, the ball screw shaft 3, the ball screw nut 4, the workbench 5, the base 6 and the injector are rotated.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1-4.
A piezoelectric-driven precision injection system comprises a rotary ultrasonic motor 1, a ball screw shaft 2, a ball screw nut 3, a workbench 4, a base 5 and an injector 6, as shown in figure 1, wherein the rotary ultrasonic motor 1 is fixed in a mounting groove at one end of the base 5, the workbench 4 is arranged in a guide groove 7 (shown in figure 2) of the base 5 and is fixedly connected with the ball screw nut 3, one end of the ball screw shaft 2 is connected with a driving piece of the rotary ultrasonic motor 1, the other end passes through the ball screw nut 3 and the workbench 4 and is supported in the base 5 (figures 1 and 4), a T-shaped push rod fixing groove 8 (figure 3) of a push rod 10 of the injector 6 is arranged at the upper part of the workbench 4, the push rod 10 of the injector 6 is inserted in the push rod fixing groove 8 and moves synchronously with the workbench 4, the main body of the injector 6 is fixed in a groove 9 (figure 2) at the other end of the base 5, the groove 9 is provided with a slot 11 for fixing the wing part of the injector 6, the rotary ultrasonic motor 1 drives the ball screw shaft 2 to rotate, the ball screw shaft 2 pushes the ball screw nut 3 and the workbench 4 connected with the ball screw nut to move linearly in the guide groove 7, and the workbench 4 drives the push rod 10 of the injector 6 to move so as to push out the injection in the injector 6, thereby realizing the precise injection of the injection.
This example drives ball screw and rotates through the rotation of control supersound motor to turn into the linear motion of workstation with the rotary motion of supersound motor, and then drive syringe push rod linear motion through workstation linear motion, realize injection system's accurate injection. The injection amount depends on the range of the injector, the injection speed can be arbitrarily controlled from 0.0001 degree to 100 degrees/s, and the maximum thrust is 100N.
Because of the syringe size is different, and the injection dosage is different, and the injection accuracy requires differently, can design this type injection system of different performance, still belongs to the utility model discloses an injection system category.
The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.
Claims (4)
1. A piezoelectric-driven precise injection system comprises a rotary ultrasonic motor (1), a ball screw shaft (2), a ball screw nut (3), a workbench (4), a base (5) and an injector (6), and is characterized in that the rotary ultrasonic motor (1) is fixed in a mounting groove at one end of the base (5), the workbench (4) is mounted in a guide groove (7) of the base (5) and fixedly connected with the ball screw nut (3), one end of the ball screw shaft (2) is connected with a driving piece of the rotary ultrasonic motor (1), the other end of the ball screw shaft passes through the ball screw nut (3) and the workbench (4), a push rod fixing groove (8) of a push rod (10) of the injector (6) is arranged at the upper part of the workbench (4), the push rod (10) of the injector (6) is inserted in the push rod fixing groove (8) and moves synchronously with the workbench (4), the main body of the injector (6) is fixed in a groove (9) at the other end of the base (5); the rotary ultrasonic motor (1) drives the ball screw shaft (2) to rotate, the ball screw shaft (2) pushes the ball screw nut (3) and the workbench (4) connected with the ball screw nut to move linearly in the guide groove (7), and the workbench (4) drives the push rod (10) of the injector (6) to move so as to push out the injection in the injector (6) and realize precise injection of the injection.
2. Piezo-electrically driven precision injection system according to claim 1, characterised in that the recess (9) is provided with a slot (11) for fixing a wing of the syringe (6).
3. Piezo-electrically driven precision injection system according to claim 1, characterised in that the ball screw shaft (2) is supported in a base (5) through one end of the table (4).
4. The piezo-electric driven precision injection system according to claim 1, wherein the push rod fixing groove (8) is a T-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022652257.9U CN214129789U (en) | 2020-11-17 | 2020-11-17 | Precise piezoelectric-driven injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022652257.9U CN214129789U (en) | 2020-11-17 | 2020-11-17 | Precise piezoelectric-driven injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214129789U true CN214129789U (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022652257.9U Active CN214129789U (en) | 2020-11-17 | 2020-11-17 | Precise piezoelectric-driven injection system |
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| Country | Link |
|---|---|
| CN (1) | CN214129789U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115999037A (en) * | 2023-02-17 | 2023-04-25 | 西安交通大学医学院第一附属医院 | Ultrasonic drug delivery system |
-
2020
- 2020-11-17 CN CN202022652257.9U patent/CN214129789U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115999037A (en) * | 2023-02-17 | 2023-04-25 | 西安交通大学医学院第一附属医院 | Ultrasonic drug delivery system |
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